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LibWeb: Add SVG <polygon> element and test case :^)

This commit is contained in:
Sam Atkins 2022-02-11 17:36:05 +00:00 committed by Andreas Kling
parent 116a1f485c
commit 2fad940b0b
10 changed files with 114 additions and 1 deletions

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/*
* Copyright (c) 2022, Sam Atkins <atkinssj@serenityos.org>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#include "SVGPolygonElement.h"
#include <LibWeb/SVG/AttributeNames.h>
#include <LibWeb/SVG/AttributeParser.h>
namespace Web::SVG {
SVGPolygonElement::SVGPolygonElement(DOM::Document& document, QualifiedName qualified_name)
: SVGGeometryElement(document, qualified_name)
{
}
void SVGPolygonElement::parse_attribute(FlyString const& name, String const& value)
{
SVGGeometryElement::parse_attribute(name, value);
if (name == SVG::AttributeNames::points) {
m_points = AttributeParser::parse_points(value);
m_path.clear();
}
}
Gfx::Path& SVGPolygonElement::get_path()
{
if (m_path.has_value())
return m_path.value();
Gfx::Path path;
if (m_points.is_empty()) {
m_path = move(path);
return m_path.value();
}
// 1. perform an absolute moveto operation to the first coordinate pair in the list of points
path.move_to(m_points.first());
// 2. for each subsequent coordinate pair, perform an absolute lineto operation to that coordinate pair.
for (size_t point_index = 1; point_index < m_points.size(); ++point_index)
path.line_to(m_points[point_index]);
// 3. perform a closepath command
path.close();
m_path = move(path);
return m_path.value();
}
}

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/*
* Copyright (c) 2022, Sam Atkins <atkinssj@serenityos.org>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#pragma once
#include <LibWeb/SVG/SVGGeometryElement.h>
namespace Web::SVG {
class SVGPolygonElement final : public SVGGeometryElement {
public:
using WrapperType = Bindings::SVGPolygonElementWrapper;
SVGPolygonElement(DOM::Document&, QualifiedName);
virtual ~SVGPolygonElement() override = default;
virtual void parse_attribute(FlyString const& name, String const& value) override;
virtual Gfx::Path& get_path() override;
private:
Optional<Gfx::Path> m_path;
Vector<Gfx::FloatPoint> m_points;
};
}

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[Exposed=Window]
interface SVGPolygonElement : SVGGeometryElement {
};
// SVGPolygonElement includes SVGAnimatedPoints;

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@ -16,6 +16,7 @@ namespace Web::SVG::TagNames {
__ENUMERATE_SVG_TAG(g) \
__ENUMERATE_SVG_TAG(line) \
__ENUMERATE_SVG_TAG(path) \
__ENUMERATE_SVG_TAG(polygon) \
__ENUMERATE_SVG_TAG(polyline) \
__ENUMERATE_SVG_TAG(rect) \
__ENUMERATE_SVG_TAG(svg)